Watch The Helsinki Effect (2025) : Full Movie Online Free The Conference on Security and Cooperation in Europe (CSCE) was the starting point for the slow but sure collapse of communist authoritarian rule in Eastern Europe. The Helsinki Effect offers new perspectives on the events of the Cold War. The film tells the story of the CSCE process, which had a major impact on the end of the Cold War, and sheds light on secret top-level discussions behind closed doors, through voice simulations using artificial intelligence.